Why this document doesn't open?

GroupDocs.Total Product Family
1

In browser console:
Request URL:GroupDocs Apps
Request Method:POST
Status Code:500 Internal Server Error

Here is another one, it opened once and doesn't open now.
https://apps.groupdocs.com/document-viewer/Embed/d8436f4301fc7198afa6a3f855fbe8f9875e9ef749fa2f65abb5d7ac7a3fd11c

2

Hello,

We are sorry to hear that you have such issue. We investigated the issue and found out a bug in our service. Our developers already are working on the issue. We will roll out a hotfix in the next few days to resolve this issue.